[pdftex] Patch for better performance of map file reading

[Hans Hagen]

At 12:03 PM 7/31/2002 +0200, Jens-Uwe Morawski wrote:
>On Wed, 31 Jul 2002 10:01:39 +0200
>Hans Hagen <pragma at wxs.nl> wrote:
>
>
> > >+      Return value:  true if tfm file is inserted,
> > >+                     false if the name is already in the hashtable
> >
> > i think that it should be possible to overload defaults, i.e. esp if you
> > use those 3000 entry files; user should be able to replace entries (in
> > additional files); so in my opinion later entries must overload 
> previous ones
>
>May be it would be better/faster if additional files (map
>+somefile.map or \pdfmapfile{+somefile.map}) get higher priority than
>the default map file. Then the first entry counts and pdftex can stop
>searching. Thus it does not need to read always the whole file/list.

there are a few more issues, like reading map files after page 1 is flushed 
and blocking loading of the default file psfonts.map (which is loaded when 
no entry is given in pdftex.cfg, which can conflict with run time loading 
of map files using \pdfmapfile.

this will be sorted out -)

Hans
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